Respiration

• Biologie
• Middelbare school
• vwo
• Leerjaar 2

How does respiration work?

Respiration is a process in all body cells in order to make energy.

Repiration needs fuel.

The most commonly used fuel is glucose. This is a sugar. 

You have learned that plants make glucose and oxygen by photosynthesis.

Humans and other animals eat those plants. That is how we get the glucose in our bodies and we take the oxygen from the air. 

Make the formula of Photosynthesis

Glucose

Carbon Dioxide

Water

Oxygen

Sunlight

What happens during respiration?

Respiration can only happen when we have glucose (fuel)

and oxygen. 

Glucose + oxygen --> ENERGY + water + carbon dioxide

When you breath out, you are getting rid of carbon dioxide. 

You also loose some water when you exhale.

--> waste products.

Respiration produces the energy we need.

Cell respiration

Glucose

Oxygen

Energy

Carbon dioxide

Water

Respiration during exercise

During exercise there is an increase in physical activity and muscle cells respire more than they do when the body is at rest.

So when exercising, your body needs more energy.

To be able to make this energy, your cells need more glucose and more oxygen.

Make the right formula of respiration

Oxygen

Energy

Water

Glucose

Carbon Dioxide

What are the waste products of respiration

1. Carbon Dioxide + Oxygen
2. Oxygen + Water
3. Water + Energy
4. Carbon Dioxide + water

What is the fuel for respiration?

1. Carbon Dioxide
2. Oxygen
3. Glucose
4. Energy

Respiration only happens in humans

1. True
2. Not true

Respiration only happens during the day

1. True
2. Not true

Without respiration we would die

1. True
2. Not true

what do respiration and breathing have to do with each other?

1. The more respiration, the slower the breathing.
2. The more respiration, the faster the breathing.

describe respiration in organisms and explain the relationship with physical activity using the terms glucose, oxygen, water, carbon dioxide, energy

Explain why food is important for respiration

short summary...

Respiration  happens in our cells. 

Respiration creates energy. 

Our cells need oxygen and glucose for respiration to happen. 

Oxygen we take from the air. 

Glucose we get from eating food. 

The waste products are: carbon dioxide and water

Do you feel like you understand respiration?

Yes

No

A little bit